$ git clone -n https://src.fedoraproject.org/rpms/tkabber-plugins.git /var/lib/mock/f40-build-2567499-62194/root/chroot_tmpdir/scmroot/tkabber-plugins
Cloning into '/var/lib/mock/f40-build-2567499-62194/root/chroot_tmpdir/scmroot/tkabber-plugins'...
$ git fetch origin 1298a3bb8af3a5b8d5b02619798f3b6f4fcaecab:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tkabber-plugins
 * [new ref]         1298a3bb8af3a5b8d5b02619798f3b6f4fcaecab -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1298a3b Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild